1 | pwm_opt_t pwm_opt; // PWM option config.
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2 | avr32_pwm_channel_t pwm_channel = {{0}, // cmr
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3 | {0}, // cdty
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4 | {0}, // cdtyupd
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5 | {0}, // cprd
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6 | {0}, // cprdupd
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7 | {0}, // ccnt
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8 | {0}, // dt
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9 | {0}};// dtupd ; One channel config.
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10 |
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11 | avr32_pwm_channel_t pwm_channel1 = {{0}, // cmr
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12 | {0}, // cdty
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13 | {0}, // cdtyupd
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14 | {0}, // cprd
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15 | {0}, // cprdupd
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16 | {0}, // ccnt
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17 | {0}, // dt
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18 | {0}};// dtupd ; One channel config.
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19 |
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20 | unsigned int channel_id,channel_id1;
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21 |
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22 | // Start Main Clock On external 16MHz Oscillator
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23 | // Start PLL for PWM
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24 | local_start_highfreq_clock();
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25 | // Start Enable Generic Clock with PLL as source clock
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26 |
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27 | pcl_switch_to_osc(PCL_OSC0, FOSC0, OSC0_STARTUP);
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28 |
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29 | pwm_start_gc();
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30 |
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31 | channel_id = EXAMPLE_PWM_CHANNEL_ID;
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32 | gpio_enable_module_pin(EXAMPLE_PWM_L_PIN, EXAMPLE_PWM_L_FUNCTION);
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33 | gpio_enable_module_pin(EXAMPLE_PWM_H_PIN, EXAMPLE_PWM_H_FUNCTION);
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34 |
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35 | channel_id1 = EXAMPLE1_PWM_CHANNEL_ID;
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36 | gpio_enable_module_pin(EXAMPLE1_PWM_L_PIN, EXAMPLE1_PWM_L_FUNCTION);
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37 | gpio_enable_module_pin(EXAMPLE1_PWM_H_PIN, EXAMPLE1_PWM_H_FUNCTION);
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38 |
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39 |
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40 | // PWM controller configuration.
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41 | pwm_opt.diva = AVR32_PWM_DIVA_CLK_OFF;
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42 | pwm_opt.divb = AVR32_PWM_DIVB_CLK_OFF;
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43 | pwm_opt.prea = AVR32_PWM_PREA_CCK;
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44 | pwm_opt.preb = AVR32_PWM_PREB_CCK;
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45 |
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46 | pwm_opt.fault_detection_activated = false;
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47 | pwm_opt.sync_channel_activated = true;
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48 | pwm_opt.sync_update_channel_mode = PWM_SYNC_UPDATE_MANUAL_WRITE_MANUAL_UPDATE;
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49 | pwm_opt.sync_channel_select[0] = true;
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50 | pwm_opt.sync_channel_select[1] = true;
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51 | pwm_opt.sync_channel_select[2] = false;
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52 | pwm_opt.sync_channel_select[3] = false;
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53 | pwm_opt.cksel = PWM_CKSEL_GCLK;
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54 | pwm_init(&pwm_opt);
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55 |
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56 | // Update the period
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57 | pwm_update_period_value(100);
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58 |
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59 | // Channel configuration
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60 | pwm_channel.CMR.dte = 1; // Enable Deadtime for complementary Mode
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61 | pwm_channel.CMR.dthi = 1; // Deadtime Inverted on PWMH
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62 | pwm_channel.CMR.dtli = 0; // Deadtime Not Inverted on PWML
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63 | pwm_channel.CMR.ces = 0; // 0/1 Channel Event at the End of PWM Period
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64 | pwm_channel.CMR.calg = PWM_MODE_LEFT_ALIGNED; // Channel mode.
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65 | pwm_channel.CMR.cpol = PWM_POLARITY_LOW; // Channel polarity.
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66 | pwm_channel.CMR.cpre = AVR32_PWM_CPRE_CCK; // Channel prescaler.
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67 | pwm_channel.cdty = 35; // Channel duty cycle, should be < CPRD.
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68 | pwm_channel.cprd = 70; // Channel period.
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69 |
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70 | pwm_channel1.CMR.dte = 1; // Enable Deadtime for complementary Mode
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71 | pwm_channel1.CMR.dthi = 1; // Deadtime Inverted on PWMH
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72 | pwm_channel1.CMR.dtli = 0; // Deadtime Not Inverted on PWML
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73 | pwm_channel1.CMR.ces = 0; // 0/1 Channel Event at the End of PWM Period
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74 | pwm_channel1.CMR.calg = PWM_MODE_LEFT_ALIGNED; // Channel mode.
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75 | pwm_channel1.CMR.cpol = PWM_POLARITY_LOW; // Channel polarity.
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76 | pwm_channel1.CMR.cpre = AVR32_PWM_CPRE_CCK; // Channel prescaler.
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77 | pwm_channel1.cdty = 70; // Channel duty cycle, should be < CPRD.
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78 | pwm_channel1.cprd = 140; // Channel period.
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79 |
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80 |
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81 | // With these settings, the output waveform period will be :
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82 | // (56MHz)/20 == 2.8MHz == (MCK/prescaler)/period, with MCK == 56MHz,
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83 | // prescaler == 1, period == 20.
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84 |
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85 | pwm_channel_init(channel_id, &pwm_channel); // Set channel configuration to channel 0
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86 |
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87 | pwm_channel_init(channel_id1, &pwm_channel1); // Set channel configuration to channel 0
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88 |
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89 | pwm_start_channels((1 << channel_id)); // Start channel 0 & 1.
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90 | pwm_start_channels((1 << channel_id1)); // Start channel 0 & 1.
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91 |
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92 |
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93 | /**
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94 | * \note the call to sysclk_init() will disable all non-vital
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95 | * peripheral clocks, except for the peripheral clocks explicitly
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96 | * enabled in conf_clock.h.
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97 | */
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98 | sysclk_init();
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99 | // Enable the clock to the selected example Timer/counter peripheral module.
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100 | sysclk_enable_peripheral_clock(EXAMPLE_TC);
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101 | // Initialize the USART module for trace messages
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102 | init_dbg_rs232(sysclk_get_pba_hz());
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103 | // Disable the interrupts
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104 | cpu_irq_disable();
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105 |
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106 | #if defined (__GNUC__)
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107 | // Initialize interrupt vectors.
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108 | INTC_init_interrupts();
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109 | // Register the RTC interrupt handler to the interrupt controller.
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110 | INTC_register_interrupt(&tc_irq, EXAMPLE_TC_IRQ, EXAMPLE_TC_IRQ_PRIORITY);
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111 | #endif
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112 |
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113 | print_dbg("haha");
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114 |
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115 | //Enable the interrupts
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116 | cpu_irq_enable();
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117 | // Initialize the timer module
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118 | tc_init(tc);
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